<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h2>首页</h2>
<form action="/logout" method="post">
    <table>
        <tr>
            <td><button type="submit">退出</button></td>
        </tr>
    </table>
</form>
</body>
</html>